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RP-HPLC法测定蜂王浆水溶性蛋白及其相关产物对ACE的抑制作用
Authors
刘永东
张智武
+3 more
彭文君
苏志国
许建香
Publication date
1 January 2008
Publisher
Abstract
采用反相高效液相色谱(RP-HPLC),测定蜂王浆水溶性蛋白(WSPs)、WSPs的纯化蛋白1(MRJP1)和2(MRJP2)、WSPs的酶解产物(P-WSPs、T-WSPs和PT-WSPs)及从WSPs和酶解产物中分离到的不同肽段(>3 ku,1~3 ku和<1 ku)等对血管紧张素转换酶(ACE)的抑制作用。结果表明,WSPs、MRJP1和MRJP2等水溶性蛋白本身对ACE抑制作用很弱,而它们的酶解产物对ACE的抑制作用却大大增强了,其IC50值分别为,P-WSPs:0.262 mg/mL;T-WSPs:0.870 mg/mL;PT-WSPs:0.046 mg/mL。在WSPs和酶解产物的膜分离肽段中,分子质量小于1 ku的肽段对ACE具有非常强的抑制作用
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Last time updated on 09/11/2016